Do you have a communication program, or terminal emulator. If so, Telnet is probably one of the available connection methods. Use ansi, or even SCO-ansi if your software offers it as the emulation method. Supply the IP address of the SCO box you want to telnet to, then attempt to connect. If your terminal program window display an SCO login prompt, you can log on to the SCO box using an account that already exists on the SCO box.
The shell environment can vary based on the login account you use, and of course if SCO does not offer you a login prompt, there may be some other SCO specific services that need to be configured. To soon to go into that here & now.
Hope this helps...
Tom Whitehead
twhitehead@commeq.com